What is the total future value of an investment in a three years CD$,$ if the investor saves $$800$ at the beginning of each year and earns seven percent annual interest?

a$.$ $$2,524\mathrm{.}541$

b$.$ $$981\mathrm{.}03$

c$.$ $$2,454\mathrm{.}28$

d$.$ $$2,751\mathrm{.}95$